Comment 1 for bug 950381

Hi Sumit, thanks for the report. I think this is a bug. Taking a quick look, nova-manage seems to ignore the flags file and load the wrong linux_net.interface_driver. Can you try this patch?

diff --git a/bin/nova-manage b/bin/nova-manage
index 4927614..16b5331 100755
--- a/bin/nova-manage
+++ b/bin/nova-manage
@@ -105,7 +105,6 @@ flags.DECLARE('network_size', 'nova.network.manager')
 flags.DECLARE('vlan_start', 'nova.network.manager')
 flags.DECLARE('vpn_start', 'nova.network.manager')
 flags.DECLARE('default_floating_pool', 'nova.network.manager')
-flags.DECLARE('public_interface', 'nova.network.linux_net')

 # Decorators for actions
@@ -632,6 +631,7 @@ class FloatingIpCommands(object):
           help='Optional interface')
     def create(self, ip_range, pool=None, interface=None):
         """Creates floating ips for zone by range"""
         + flags.DECLARE('public_interface', 'nova.network.linux_net')
         addresses = netaddr.IPNetwork(ip_range)
         admin_context = context.get_admin_context()
         if not pool: